CVE-2026-5105 MEDIUM

CVE-2026-5105: Totolink A3300R Parameter cstecgi.cgi setVpnPassCfg command injection

Vendor Totolink
Product A3300R
Weakness CWE-77
Published March 30, 2026
Last update March 30, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was detected in Totolink A3300R 17.0.0cu.557_b20221024. The affected element is the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument pptpPassThru results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

Key dates

02Disclosure timeline

March 30, 2026 CVE published
March 30, 2026 Record updated